Winding-machine.



No.807,133,. PATBNTED DEG.12,1905.

A. D. SCOTT.

WINDING MACHINE.

APPLICATION rum) JAN. 25, 1902.

5 sumsmm 1.

No. 807,133. PATENTED. DEC. 12, 1905.

A, D. SCOTT.

WINDING MAUHINE.

APPLICATION FILED JAN. 25. 1902.

6SHEETS-SHBET 2.

Wairwqsaea:

No. 807,133. 'PATENTED DEC. 12, 1905.

A. D. soo'frr. WINDING MACHINE;

APPLICATION ruin JAN. 25. 1902. Y

' 5 SHEETS-SHEET s.

I. o lllllum un W? e I J for Z E9090? 0? I I QC %7ZW97 .I u f PATEN TEDDEC. 12, 1905.

A. 1). SCOTT. WINDING MACHINE.

APPLICATION FILED JAN. 25, 1902.

5 SHEETS-SHEET 4.

PATENTED DEC. 12, 1905.

A. D. SCOTT. WINDING MACHINE.

APPLICATION FILED JAN. 25. 1902'.

5 SHEETS-SHEET 5.

ull

STATES PATENT OFFICE.

AROHIBALD DSCOTT, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO VARLEY DUPLEXMAGNET COMPANY, A CORPORATION 7 OF NEW JERSEY.

WINDING-MACHINE.

Specification of Letters Patent.

Patented Dec. 12, 1905.

To all whom it may concern.-

Be it known that I, ARCHIBALD D. Soon, a citizen of the United States,and a resident of Providence, in the county of Providence and State ofRhode Island, have invented a new and useful Improvement in WindingMachines, of which the following is a specification.

This invention is primarily intended and adapted for the winding ofinsulated wire into coils for electrical apparatus; but principlesinvolved may more or less be applied to the Winding of other things.

Heretofore in machines in use for winding in general the movements ofthe guide for the production of the traverses and the change from onetraverse to the next have in general been accomplished by mechanismpositively moving the guide independently of the run of strand betweenthe guide and the coil being wound. Such winding-machines areinapplicable to the Winding of insulated wire in layers directly uponeach other for the purposes of electrical apparatus, because of theknots or lumps in the insulating material or kinks in the wire itself.For this reason, to the best of my knowledge, the winding of insulatedWire for electrical apparatus has heretofore been done by hand.

My invention consists of an improved machine in which the traversing ofthe guide is controlled by the strand being wound.

One feature of my invention consists in so disposing the supports forthe wire that the uniformity of selfcontrol. exerted by the strand beingwound upon the traverses is unimpaired by any substantial variation intension due to substantial variation in length of wire between thetension device and the coil being wound during a given traverse.

A second feature of my invention consists in so disposing the supportsfor the wire that the uniformity of self-control exerted by the strandbeing wound upon the traverses is unimpaired by any substantialvariation in the lateral pressure of the guide upon the wire in thedirection of traverse during a given traverse.-

A third feature of my invention consists in the form of mechanism inwhich I embody the above first and second features and Which consists ina crane supported to swing in a substantially horizontal plane, whichbeing selfsupporting relieves the wire from any variations of pressurewhich might result from participation in the support of the guides, thewire being guided in alinement with the pivotal connections of the craneto also avoid imposing substantial variation in the length of the wirefrom the movement of the crane.

Other features of my invention will be apparent from the followingdescription and claims.

In the accompanying drawings, Figures 1 and 2 represent in end and frontviews the mode of operation of the guide and the run of wire between theguide and the mandrel during the process of winding, the deviations oftherun of wire from the vertical being exaggerated for clearness ofillustration. These views, Figs. 1 and 2, as filed herewith aresubstantially full size. Figs. 3 and 4 are respectively a plan and rearelevation of the entire apparatus. Figs. 5 and 6 are respectively a planand elevation of the crane. Figs. 7 and 8 are details of a modification.

The self-control which during the traverse the pull of the wire stranditself exercises upon the operation will first be described.

In Figs. 1 and 2 the guide is represented as the grooved wheel 1 and thecoil-receiver as the mandrel 2. 3 and 4 are members which stop or limitthe traverses or locate the point of change from one traverse toanother. In the preferable form shown they constitute heads consistingof flanges at right angles to the axis of the mandrel and detachablysecured to the mandrel, so as to be removable therefrom to permit of theremoval of-the mandrel from the completed coil. The axis of thewheel-guide l is free to move in a horizontal plane, which plane is solocated with respect to the mandrel and the mandrel-heads that when thewheel is advanced toward the mandrel till the line tangent to both theirperipheries is vertical thewheel will clear the heads 3 and 4 when movedlaterally past them; By locating the wheel-guide in the preferable p0sition described and giving it freedom of movement in a horizontal planeit Will operate as follows: The end of the wire 5, which passes over thewheel 1 under suitable tension, is fixed to the mandrel by beinginserted in a retaining-hole in one of the heads close to the mandrel.The mandrel is run at a speed of, say, two thousand revolutions. As thefirst layer of wire strand is being wound the wire will pull theWheel-guide 1 so as to keep the run of wire between the wheel and themandrel nearly vertical. The wheel, however, because of the friction ofits supports or other very gentle and substantially invariable force,will lag slightly behind, and thus give the run of wire between thewheel and mandrel a very slight backward inclination from the vertical,as illustrated with exaggeration in Fig. 2, and cause each succeedingturn of the wire to be laid close up to without mounting upon thepreceding turn. This backward inclination of the run of wire alsoinsures the completion of the layer all the way up to the head orstrandstop in advance of any stoppage of the forward traverse of thewheel-guide. The change of traverse is preferably accomplished asfollows: When a layer has been completed, the momentum of thewheel-guide will still carry it forward until the run of wire between itand the mandrel becomes perpendicular to the axis of the mandrel andcollides with the strandstop or head 3 or 4, as indicated in dottedlines in Fig. 2, which will arrest the forward movement of theguide-wheel and compel the first turn of a second layer to be superposedupon the first layer. Then the advance of the sec ond layer will impelthe wheel-guide in a backward direction and may be depended upon for thechange to a backward traverse. As the second layer of the coil proceedsthe wire will pull the wheel-guide along with it with a slight lag, asbefore, until the second layer and backward traverse is complete.

Although in the above specific description reliance is placed upon theheads and upon the force of momentum to complete the layers and tochange from one layer to the next, I do not wish to be understood as solimiting myself, because I am aware that a substitute member may performsubstantially the function of the head and a substitute force may takethe place of the momentum.

Throughout the making of each layer the tendency of the pull of the wireitself when the guide-wheel is in the preferred position is to maintainthe movement of the wheel-guide in a straight line parallel with theaxis of the mandrel, and as the winding changes from one layer to thenext the pull of the wire tends to move the wheel-guide backward thethickness of one layer. Thus the successive traverses of the wheel-guideare made in a succession of straight lines which are separated from eachother by the thickness of a layer. In the making of any layer if anyvariations occur in the size of the strand being wound the freedom ofmovement ofthe guide-wheel in the line of traverse permits the wireitself to modify the movement of the guide-wheel, so as to compensatefor such variation, and thus the guide-wheel as it traverses iscompelled to respond by irregularity of movement to every irregularityin size of the strand being wound. Moreover, it is preferable that, asdescribed, the guidewheel should also in the change from one traverse orlayer to the next be free to be moved backward by the pull of the strandbeing wound, and when this is the case the extent of backward movementof the guide-wheel accommodates itself to any variation in the thick=ness of the preceding layer or layers. Thus the line of traverse of theguide-wheel is lo= cated by the pull of the wire and deviates from amathematically straight line to the extent that the surface of thepreceding layer deviates.

I will next describe the mechanical structure by which I enable thestrand to exercise the self-control upon the winding above described.

6 is abed-plate,'upon which are mounted the stationary head-stock? andthe movable tailstock 8, by which the mandrel 2 is held and rotatedbetween centers. To one side of the bed-plate 6 is secured a bracket 9,which rises to a proper height to carry one pair 10 and 11 of thecenters of the crane. The inner arm of the crane is composed of theupright 12, which is held by the centers 10 and 11; also. the horizontalmembers 13 and 14:, carrying at their extremities the centers 15 and 16,between which the outer arm of the crane is pivoted; also, the crosspieces 17 and 18, which are respectively trussed by the rods 19 and 20.The outer arm of the crane is composed of the upright 21, which isheldby the centers 15 and 16 and the converging members 22 and 23, at theapex of which is mounted the piece 24, carrying the axle of theguide-wheel 1. The double pivotal connections of this structure firmlysupport the axis of the guide-wheel in a horizontal plane, but permit ofits free movement in such plane responsive to the pull of the wirestrand being wound.

25 is the sup-ply bobbin or spool of wire which is mounted between thecenters 26 and 27 of the supports or arms 28, carried bythe table 29.Tension is applied, preferably, to the supply spool or bobbin by meansof the spring 30, one end of which is pivoted to one end of the yoke 31and the other end of which is adjsuted by a set-screw 32, binding thespring to the other end of the yoke. By

adjusting the position of the screw 32 the operator may cause the spring30 to produce any desired tension by its pressure upon the cone 34:. Thewire strand leaving the supply spool or bobbin 25 passes over thefreelyturning grooved wheel-guide 36, mounted on the bracket 9, andunder the freely-turning grooved wheel-guide 37, mounted on the innerarmof the crane. These wheel-guides 36 and 37 are so located that the runof wire between them is for all positions of the crane substantially inalinement with the centers 10 and 11. The wire next proceeds over thefreely-running grooved wheel -guide 38, mounted on the forward end ofthe inner arm of the crane, and under the freely-running groovedwheel-guide 39, mounted on the outer arm of the crane, the position ofthese two wheel-guides being such that the run of wire between them isfor all positions of the crane held in substantial alinement with thecenters 15 and 16. Thus the primary leader to the delivery-guide 1consists of the two guiding members 38 39. pivotally connected togetheron the pivotal line 15 16, in substantial alinement with which they leadthe strand, while the secondary leader consists of the two guidingmembers 36 37, pivotally connected together on the pivotal line 10 11,in substantial alinement with which they lead the strand, the leadersand delivery-guide being so distanced from each other by the arms of thecrane as to maintain the length of the run of wire substantiallyinvariable. The wire next proceeds over the freely-running groovedwheel-guide 1 to the mandrel, as before described. By having runs of thewire strand held in substantial alinement with both of the pivotalconnections of the crane I preserve the freedom of movement of thewheelguide and substantially prevent any variations in the pull of thewire due to variations of the insulating material .or other causes fromdisturbing the position or regular movement of the guide-wheel 1 In themodification shown in Figs. 7 and 8 the wheel 1 and mandrel 2 aremounted as before and have the same mode of operation as before duringeach traverse. In lieu of the heads 3 and 4, however, I employ a fingerat each end of the traverses by which the change of traverse isaccomplished. These fingers are mounted upon a bar 40, fixed parallelwith the axis of the mandrel, each finger being adjustablelongitudinally on said bar. Each finger consists of the two members 41and L2, jointed at 43. The end of each finger rests on the mandrel. Eachfinger contains a projection 44, which areinversely disposed and areformed at any angle of inclination to the axis of the mandrel which maybe desired. These projections 44: are located out of the traversing-pathof the wheel 1, so that the wheel 1 may be carried by its momentum pastthe face of the projection, leaving the traverse to be arrested by thecollision between the face of the projection and the run of the strandbetween the wheel and mandrel. By this contrivance the length of thesuccessive layers of the coil may be varied to any extent required,depending upon the form of the projections 44, and one or both ends ofthe coil may be made conical.

I do not wish to be limited to the details of mechanism above described.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent 1. In awinding-machine, in combination,

the coil-receiver, a crane comprising a quadrilateral frame, anapproximately triangular frame pivoted to the outer vertical side of thequadrilateral frame, a guide carried by the upper inclined side of thetriangular frame and positioned adjacent to the quadrilateral frame, anda delivery-guide standing at an angle with the axis of saidcoil-receiver and. mounted upon the extremity of the triangular frame,whereby the-strand being wound produces the traverses by the sidewisemovement of said guide.

2. In a winding-machine, in combination, the coil receiver, a cranecontaininga plurality of pivotally-connected arms, the forward one ofwhich arms stands at an angle with the axis of said coil-receiver,adelivery-guide mounted upon the extremity of said forward arm and aleader upon said forward arm whereby the strand being wound controls thetraverse by the sidewise movement of said forward arm. 3. In awinding-machine, in combination, the coil-receiver, a crane containing aplurality of pivotally-connected arms, the pivotal connection of theforward arm of the same standing in a plane approximately at rightangles with the axis of said coil-receiver at its middle, and adelivery-guide mounted upon said forward arm; whereby the traverses ofsaid delivery-guide are free to be controlled by the pull of the'strandbeing wound symmetrically on opposite sides of said plane.'

4. In a winding-machine, in combination,

the coil-receiver, a frictional device operating on said coil-receiver,a crane containing a plurality of pivotally-connected arms, adeliveryguide mounted upon the forward arm and a pair of guide-wheelsone on each side of each pivotalconnection; each pivotal line beingapproximately tangent to the adjacent pair of guide-wheels.

5. In a winding-machine, in combination, the coil-receiver, a cranecontaining a plurality of pivotally-connected arms, a verticaldelivery-guide mounted upon the forward arm, a series of verticalguide-wheels in such position that the centers of said pivotalconnections are in approximate alinement withthe tan gents to each pairof said guide-wheels.

6. In a winding-machine, in combination, the coil-receiver. a cranecontaining two pivotallyconnected arms, the forward arm consisting of aconverging frame, and the arm to which it is pivotally connectedconsisting of a braced quadrilateral frame, and a deliveryguide mountedat the extremity of the converging frame. I

7. In a winding-machine, in combination, the coil-receiver, acrane-supporting column, a crane pivotally connected therewith andcontaining a plurality of pivotallyconnected arms, a guide-wheel mountedupon the top of said column and overhanging the pivotal connectiontherewith, a cooperating guidewheel mounted upon the top of the craneand also overhanging the pivotal connection with 10 arm, a supply-spoolholder and a frictional device operating upon the side of saidspoolholder.

In testimony whereof I have signed my name in the presence of twosubscribing Witnesses.

ARCHIBALD D. SCOTT.

Witnesses:

CHAS. H. LUTHER, J r., J. A. MILLER, Jr.

